Constans II of Byzantium

Constans II of Byzantium (7 November 630-15 September 668) was the Emperor of the Byzantine Empire from 641 to 668, succeeding Herakleonas of Byzantium and preceding Constantine IV of Byzantium.

Biography
Constans was born on 7 November 630 to the House of Herakleidon, a dynasty of Orthodox Christian Greeks. He was the son of Emperor Constantine III of Byzantium, and he succeeded his young uncle Herakleonas of Byzantium as emperor of the Byzantine Empire on his premature death at the age of 15. In 642 he ordered the Byzantine withdrawal from Aegyptus, which was conquered by the Rashidun Caliphate. Caliph Uthman raided the Mediterranean islands, and Constans meddled in Church affairs as the Arabs took over Crete, Armenia, Cappadocia, and Phrygia. Constans himself led a navy to fight the Arabs, but at the Battle of the Masts, the Rashidun navy defeated Constans' ships. Constans' blunders led to him gaining a bad reputation, and when rumors began that he planned to move the capital from Constantinople to Syracuse, he was assassinated in his bath with a bucket by his chamberlain.